7 oo WORMS. INFUSORIA. 105. Vorticella. 



AurUulata. Naked, with a fmall bridle at the tail. 

 Mull. Verm. I. /, 1 1 1, n. 1 19. 



In frefh waters: pellucid, cylindrical, the aperture dilated into & 

 fmall ear each fide, the middle divifion nearly triangular, 



*Furcata. Cylindrical, with a fimple aperture and fnnple bifid tall. 

 Adams Microfc. p. 556 n. 324, 



In common water; tail divided into 2 parts, which unite when, 

 at reft. 



Senta. Mouth fpinous, tail cleft at the tip. 



Mull. Verm. I. p. 109, n. 117. 



In fhallow ftreams : pellucid, varioufly plaited, truncate for- 

 wards, with a fingle rotatory organ and yellowi/h inteitine. 



*Catulus, Cylindrical, with a plain aperture, and reflected bifid tail. 



Adams Microfc. p. 325. tab. 27. fig. 56. 



Joblot Microfc. i. 2, tab. 13. fig. X. 



In marfhy waters: thick, mufcular, varioufly folded: head con- 

 nected by a fhort neck : tail fhort ending in 2 fmall briftlcs, 

 and exferted or concealed at pleafure. 



Felis. Cylindrical, with an unarmed mouth, the tail ending in 2 



long fpines. 

 Adams Microfc. p. 556. w. 327, 



In frelh waters:' body thick; tail acute, with 2 pellucid fpines 

 alternately receding and approaching. 



Vermicular Cylindrical, annulate 3 with an exfertile probofcis. / 



ris. Joblot Microfc. I. p. 80. tab. 1 J. fig. A — Z. 



In frefh waters : body elongated, flefhy, changeable, with about 8 

 or 9 wrinkles, the tip obtufe or ending in 2 fpines : probojeit 

 jointed, bifid : tail ending in 2 pellucid fpines. 



*Macroura With a double rotatory organ, and {lender tail ending in 3 

 triple fpine. 

 Baker Micogr. p, 380. tab. 12. fig, I. 

 Hermann* Naturf. 19. p 57, tab. z. jig. 23. 

 In marmy waters: refembles V. rotatoria, but is entirely hyaline, 



*Rotatcn'ao Cylindrical, with a double rotatory organ and long tail fur,, 

 nilhed with 4 points. 



Adams Micr. p. 548. t. 26.fi — 3. 6. 7. I I — 23. /. 27. /*,46«— -49. 



Hill Hilt. 4nim. tab. I, 2. 



Baker Microfc. p 348. tab. 1 r. fig, 1 — 14, 



Baker micr. expl. p. 95. tab. 6 — 8. 



Joblot Microfc. 2, p. 96. tab. j./. A — E. K, 



la 



